Definition of Apex

1. Noun. The highest point (of something). "At the peak of the pyramid"

Exact synonyms: Acme, Peak, Vertex
Specialized synonyms: Crown, Roof Peak
Generic synonyms: Extreme, Extreme Point, Extremum
Derivative terms: Apical

2. Noun. The point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars.
Exact synonyms: Apex Of The Sun's Way, Solar Apex
Generic synonyms: Celestial Point
Group relationships: Celestial Sphere, Empyrean, Firmament, Heavens, Sphere, Vault Of Heaven, Welkin
Antonyms: Antapex
Derivative terms: Apical

Definition of Apex

1. n. The tip, top, point, or angular summit of anything; as, the apex of a mountain, spire, or cone; the apex, or tip, of a leaf.

Definition of Apex

1. Initialism. (British trade union) '''A'''ssociation of '''P'''rofessional, '''Ex'''ecutive, Clerical and Computer Staff. ¹

2. Acronym. (aviation) advance Advanced purchase Purchase excursion Excursion (Air fare) ¹

3. Noun. The highest point of something. ¹

4. Noun. (figuratively) The moment of greatest success, expansion, etc. ¹

5. Noun. (geometry) The topmost vertex of a cone or pyramid (in their conventional orientation). ¹

6. Noun. (chiefly anatomy) The pointed end of something. ¹

7. Noun. (botany) The end of a leaf, petal or similar organ opposed to the end where it is attached to its support; the tip. ¹

8. Noun. (astronomy) The point on the celestial sphere toward which the sun appears to move relative to nearby stars. ¹

9. Noun. (mining US) The end or edge of a vein nearest the surface. ¹

¹ Source:

Definition of Apex

1. the highest point [n APEXES or APICES]

Medical Definition of Apex

1. The very bottom of the root of your tooth. (08 Jan 1998)

Apex Pictures

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Lexicographical Neighbors of Apex

aperture of orbit
aperture plane
apetalous flower
apex (current term)
apex auriculae
apex beat
apex capitis fibulae
apex cartilaginis arytenoideae
apex cordis
apex cornus posterioris
apex cuspidis dentis
apex dentis
apex impulse
apex linguae
apex nasi
apex of arytenoid cartilage
apex of cusp of tooth
apex of dens

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